CONNECTION VIBRATION PREVENTION DEVICE OF BASE ISOLATION SUPPORT

• Main Authors: SASAKI SATOSHI, AJINO TOMOHIRO, TAHARA KENICHI, SASAKI YASUHITO, KAWAHARA ISAMU, NAKAMURA YOSHIYA, HIGASHIYAMA KOJI
• Format: Patent
• Language: English; Japanese
• Published: 05.10.2017
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a connection vibration prevention device capable of maintaining a pressure receiving area between a flange plate and a shaft of a bolt and reducing burden on a connection portion, even in a case of floating of the flange plate.SOLUTION: A connection vibration prevention device 1 of a laminate rubber support 3 is configured such that an inner cylinder 9 on a shaft part 22 side of a fitting bolt 2 can relatively move in its axis direction to the shaft part 22, and between at least one of a first elastic body 10 and outer cylinder 7 provided between the shaft part 22 and a lower flange plate 33, and a head part 21 of the fitting bolt 2, a second elastic body 6 is arranged.SELECTED DRAWING: Figure 2 【課題】フランジプレートの浮き上がりに対しても、フランジプレートとボルトの軸部との間の受圧面積を維持し、連結部分への負担を軽減し得る連結防振装置をもたらす。【解決手段】積層ゴム支承体３の連結防振装置１について、取付ボルト２の軸部２２側の内筒９を軸部２２に対してその軸方向に相対移動可能とするとともに、下側フランジプレート３３と軸部２２間に設けられた第１弾性体１０及び外筒７の少なくとも一方と取付ボルト２の頭部２１との間に第２弾性体６を配置するようにした。【選択図】図２